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Claude 4 announced — context window doubles, agentic tools land

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Anthropic published the Claude 4 release notes today, doubling the context window to 400K tokens and shipping native tool-use across the API + Claude.ai web client.

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Discussion (2)

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  • BE
    Bea

    Has anyone benchmarked this against the previous release? Curious about the latency tradeoffs.

  • AL
    Alex Pro

    This lines up with what I saw shipping last week. Going to test the API change later today.

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